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COMPARATOR
s
LOW SUPPLY CURRENT (1.1mA) INDE-
PENDENT OF SUPPLY VOLTAGE
s
LOW INPUT BIAS CURRENT : 25nA TYP
s
LOW INPUT OFFSET VOLTAGE : ±1mV TYP
s
INPUT COMMON-MODE VOLTAGE RANGE
INCLUDES GROUND
s
LOW OUTPUT SATURATION VOLTAGE :
250mV TYP; (Io = 4mA)
s
DIFFERENTIAL INPUT VOLTAGE RANGE
EQUAL TO THE SUPPLY VOLTAGE
s
WIDE POWER SUPPLY RANGE : ±1V to
±18V
s
ESD PROTECTION : 1.5kV
VOLTAGE REFERENCE
s
Fixed V
ref
to 2.5V
s
0.4% AND 1% VOLTAGE PRECISION
s
SINK CURRENT CAPABILITY : 1 to 100mA
DESCRIPTION
The TSM109 is a monolithic IC that includes two
comparators and a shunt voltage reference. This
device offers space and cost savings in many ap-
plications including power supply management or
data acquisition systems.
ORDER CODE
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
Part
Number
Temperature
Range
Package
N
D
TSM109
-40°C, +105°C
·
·
TSM109A
-40°C, +105°C
·
·
D
SO8
N
DIP8
1
2
3
4
5
6
7
8
Gnd
Ve+
Ve+
Ve-
Out
Vcc
Vref
Out
TSM109/A
DUAL COMPARATOR AND VOLTAGE REFERENCE
November 2002
TSM109/A
2/7
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
V
CC
+
= 5V, V
CC
-
= 0V, T
amb
= 25°C (unless otherwise specified)
Symbol
Parameter
Value
Unit
V
CC
Supply voltage
36
V
V
id
Differential Input Voltage
36
V
V
in
Input Voltage
-0.3 to V
cc
+0.3
V
Ik
Continuous Cathode current range
-100 to 150
mA
T
oper
Operating Free-air Temperature Range
-40 to105
°C
T
j
Maximum Junction Temperature
150
°C
R
thja
Thermal Resistance Junction to Ambient (SO package)
175
°C/W
ESD
Electrostatic Discharge Protection
1.5
kV
Symbol
Parameter
Min
Typ
Max
Unit
I
CC
Total Supply Current, excluding current in the Voltage
Reference
V
CC
= +5V, no load
V
CC
= +30V, no load
0.4
1
1
2.5
mA
TSM109/A
3/7
ELECTRICAL CHARACTERISTICS
COMPARATOR (independent comparator)
V
CC
+
= +5V, V
CC
-
= GND, T
amb
= +25°C (unless otherwise specified)
Symbol
Parameter
TSM109
Unit
Min.
Typ.
Max.
V
io
Input Offset Voltage - note
1)
T
amb
= +25°C
T
min
T
amb
T
max
1.
At output switch point, V
o
1.4V, R
s
= 0 with V
CC
+
from 5V to 30V, and over the full common-mode range (0V to V
CC
+
-1.5V).
1
5
9
mV
I
io
Input Offset Current
T
amb
= +25°C
T
min
T
amb
T
max
3
25
100
nA
I
ib
Input Bias Current (I
+
or I
-
) - note
2)
T
amb
= +25°C
T
min
T
amb
T
max
2.
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the
output, so no loading charge exists on the reference of input lines.
25
250
400
nA
A
vd
Large Signal Voltage Gain
V
CC
= 15V, R
L
= 15k
,
V
o
= 1V to 11V
50
200
V/mV
V
icm
Input Common Mode Voltage Range - note
3)
V
CC
= 30V
T
amb
= +25°C
T
min
T
amb
T
max
3.
The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the
common-mode voltage range is V
CC
+
-1.5V, but either or both inputs can go to +30V without damage.
0
0
V
CC
+
-1.5
V
CC
+
-2
V
V
id
Differential Input Voltage -note
4)
4.
Positive voltage excursions of one input may exceed the power supply level. As long as the other input voltage remains within the common-mode
range, the comparator will provide an appropriate output state. The low input voltage state must not be less than -0.3V (or 0.3V below the negative
power supply, if used).
V
CC
+
V
OL
Low Level Output Voltage
V
id
= -1V, I
sink
= 4mA
T
amb
= +25°C
T
min
T
amb
T
max
250
400
700
mV
I
OH
High Level Output Current (V
id
= 1V)
V
CC
= V
o
= 30V
T
amb
= +25°C
T
min
T
amb
T
max
30
150
1
nA
µ
A
I
sink
Output Sink Currrent
V
id
= 1V, V
o
= 1.5V
10
20
mA
t
re
Response Time - note
5)
R
L
= 5.1k
connected to V
CC
+
5.
The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals, 300ns can be obtained
1.3
µ
s
t
rel
Large Signal Response Time
R
L
= 5.1k
connected to V
CC
+
,
e
l
= TTL,
V
(ref)
= +1.4v
300
ns
TSM109/A
4/7
COMPARATOR (comparator with inverting input connected to the internal Vref))
V
CC
+
= +5V, V
CC
-
= GND, T
amb
= +25°C (unless otherwise specified)
Symbol
Parameter
TSM109
Unit
Min.
Typ.
Max.
V
io
Input Offset Voltage - note
1)
T
amb
= +25°C
T
min
T
amb
T
max
1.
At output switch point, V
o
1.4V, R
s
= 0 with V
CC
+
from 5V to 30V, and over the full common-mode range (0V to V
CC
+
-1.5V).
1
5
9
mV
I
ib
Input Bias Current for positive input note
2)
T
amb
= +25°C
T
min
T
amb
T
max
2.
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the
output, so no loading charge exists on the reference of input lines.
25
250
400
nA
A
vd
Large Signal Voltage Gain
V
CC
= 15V, R
L
= 15k
,
V
o
= 1V to 11V
50
200
V/mV
V
OL
Low Level Output Voltage
V
id
= -1V, I
sink
= 4mA
T
amb
= +25°C
T
min
T
amb
T
max
250
400
700
mV
I
OH
High Level Output Current (V
id
= 1V)
V
CC
= V
o
= 30V
T
amb
= +25°C
T
min
T
amb
T
max
30
150
1
nA
µ
A
I
sink
Output Sink Currrent
V
id
= 1V, V
o
= 1.5V
10
20
mA
t
re
Response Time - note
3)
R
L
= 5.1k
connected to V
CC
+
3.
The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals, 300ns can be obtained.
1.3
µ
s
t
rel
Large Signal Response Time
R
L
= 5.1k
connected to V
CC
+
,
e
l
= TTL,
V
(ref)
= +1.4v
300
ns
TSM109/A
5/7
ELECTRICAL CHARACTERISTICS
VOLTAGE REFERENCE
T
amb
= 25°C (unless otherwise specified)
Symbol
Conditions
Value
Unit
I
K
Cathode Current
1 to 100
mA
Symbol
Parameter
TSM109A
TSM109
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
V
ref
Reference Input Voltage, I
K
= 10 mA
T
amb
= 25°C
T
min
T
amb
T
max
2.490
2.48
2.500
2.510
2.52
2.475
2.45
2.500
2.525
2.55
V
V
ref
Reference Input Voltage Deviation OverTemperature
Range I
K
= 10 mA
T
min
T
amb
T
max
7
30
7
30
mV
Temperature Coefficient of Reference Input Voltage
I
K
= 10 mA,
T
min
T
amb
T
max
±13
±90
±13
±90
ppm/°C
I
min
Minimum Cathode Current for Regulation
0.5
1
0.5
1
mA
|Z
Vref
|
Dynamic Impedance - note
1)
V
ref
,
I
K
= 1 to 100mA, f < 1KHz
1. The dynamic impedance is defined as [Z
Vref
| =
V
Vref
/
I
K
0.3
0.65
0.3
0.65
Vref
Vref
T
--------------------
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